1 /*

     2 * Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  CMMAAudioMetaDataControl is a concrete class for getting

    15 *                metadata from an audio media.

    16 *

    17 */

    18 

    19 

    20 //  INCLUDE FILES

    21 #include <jdebug.h>

    22 

    23 #include "cmmaaudiometadatacontrol.h"

    24 

    25 CMMAAudioMetaDataControl::CMMAAudioMetaDataControl(

    26     RMMFController& aController)

    27         : iController(aController)

    28 {

    29     DEBUG("CMMAAudioMetaDataControl constructor called.");

    30 }

    31 

    32 TInt CMMAAudioMetaDataControl::KeyCountL()

    33 {

    34     TInt entries = 0;

    35 

    36     User::LeaveIfError(iController.GetNumberOfMetaDataEntries(entries));

    37     return entries;

    38 }

    39 

    40 HBufC* CMMAAudioMetaDataControl::KeyL(TInt aIndex)

    41 {

    42     CMMFMetaDataEntry* currEntry = NULL;

    43 

    44     currEntry = iController.GetMetaDataEntryL(aIndex);

    45     CleanupStack::PushL(currEntry);

    46     HBufC* key = currEntry->Name().AllocL();

    47     CleanupStack::PopAndDestroy(); // currEntry

    48 

    49     return key;

    50 }

    51 

    52 

    53 /*

    54  * Get the value of given audio metadata key. The ownership of the created value

    55  * (descriptor) is passed to the caller.

    56  */

    57 HBufC* CMMAAudioMetaDataControl::KeyValueL(const TDesC& aKey)

    58 {

    59     DEBUG("MMA::CMMAAudioMetaDataControl::GetKeyValueL() called.");

    60 

    61     HBufC* retVal = NULL;

    62     CMMFMetaDataEntry* currEntry = NULL;

    63 

    64     TInt nEntries = 0;

    65     User::LeaveIfError(iController.GetNumberOfMetaDataEntries(nEntries));

    66 

    67     for (TInt i = 0; i < nEntries; ++i)

    68     {

    69         currEntry = iController.GetMetaDataEntryL(i);

    70 

    71         if (0 == aKey.Compare(currEntry->Name()))

    72         {

    73             CleanupStack::PushL(currEntry);

    74             retVal = currEntry->Value().AllocL();

    75             CleanupStack::PopAndDestroy(); // currEntry

    76             break;

    77         }

    78 

    79         delete currEntry;

    80     }

    81 

    82     User::LeaveIfNull(retVal);

    83     return retVal;

    84 }

    85 

    86 //  END OF FILE